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Often referred to as line type heat detection, LHD is a cable-based type of early fire detection, designed to generate either an alarm, or automatically activate a fire suppression system. The cable itself acts as a heat detector, so when a physical or electronic change occurs, this is identified anywhere along the cable’s entire length (reaching up to 3km).
Dec 10, 2020 · 1. Riser and Plenum Rating. Use riser fire alarm cable when installations run vertically in the walls of a home or building. Use plenum fire alarm cable when installations run horizontally above in duct or plenum. Both of the ratings come with an option of a foil shield to block EMI.
A linear heat detection system offers several benefits which include: Linear heat sensing cable provides a seamless source of effective heat detection that spans up to 10,000 feet, giving maximum protection. Linear heat sensing cable lasts for several years and maintains its durability. Easily integrates with various fire alarm system modules.
Simple Installation, High Sensitivity, Early Detection. Honeywell’s Linear Heat Detection Cable (LHDC) is a continuous heat detector that can detect heat (due to fire or other events) at any point along its entire length. The cable is composed of two twisted-shield conductors, insulated with a heat-sensitive polymer, then wrapped with a ...
May 30, 2024 · Types of Fire Alarm Cables. Each type of fire alarm cable is tailored for specific applications: – Class 1: Signals from initiation devices (e.g., smoke detectors, heat sensors). – Class 2: Power supply for fire alarm panels and ancillary equipment. – Class 3: Auxiliary circuits, such as door releases and notification devices.
Sep 20, 2023 · The Vital Role of Fire Alarm Cables. Fire alarm cables are the unsung heroes of fire safety systems. They are responsible for transmitting signals between various components of the fire alarm system, including smoke detectors, heat detectors, manual pull stations, alarm panels, and notification devices such as sirens and strobe lights.
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Linear Heat Detection Cable. SafeCable digital linear heat detection (LHD) cable is a combination of advanced polymer and digital technologies that can detect heat anywhere along its entire length. SafeCable is also compatible with any listed addressable or conventional panel. For addressable panels use addressable contact monitor modules.
